Protect your Rockustics investment with RSB1 security brackets. These brackets attach to the bottom of a Rockustics rock and provide a bolt hole that can be used to tether the rock with a cable or with a 3/8" bolt. The bracket can be easily adjusted to allow the rock to sit flat on a variety of surfaces, and is thin enough that it will not affect the look or performance of the speaker.The bracket is made from 16 gauge 304 grade stainless steel and will be attached to the rocks with stainless steel Torx pin security screws. A single unit will provide a basic level of security. Adding an additional bracket and bolting both brackets to the substrate the rock sits on will provide the greatest level of theft protection.